MESON Chess Problem Database

Problem Display
PID: 241249 (1Q6/1K1NRN2/1p1p1p2/1r2b2P/4k3/2n1Ppn1/2P2P2/8 w - - 0 1)

Rice, John Michael

Sachsische Zeitung, 1997

1Q6/1K1NRN2/1p1p1p2/1r2b2P/4k3/2n1Ppn1/2P2P2/8

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Sxd6#
    • 1...Sf5
      • 2.Sxf6#
    • 1...d5
      • 2.Sd6#
    • 1...f5
      • 2.Sf6#
  • Tries
    • 1.Qc8?
      • threat
        • 2.Sxf6#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Sc5#
      • 1...Sd5
        • 2.Sxd6#
      • 1...f5
        • 2.Sf6#
        • 2.Qc4#
      • 1...Sxh5!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Sxd6#
      • 1...Kd5
        • 2.Sg5#
      • 1...Kf5
        • 2.Qg6#
      • 1...Rd5
        • 2.Qg4#
      • 1...Sf5
        • 2.Sxf6#
      • 1...d5
        • 2.Sd6#
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(a);SBLOCK::S(H),XP(h)
    • S(c);SBLOCK::S(F),XP(i)
    • P(h);SBLOCK::S(H)
    • P(i);SBLOCK::S(F)
  • Tries
    • Try
      • Q(I);
      • Threat
        • S(F),XP(i)
      • Vars
        • K(d);N_SPINB(f),S_FLIGHT::QAB1(I)
        • K(d);N_SPINB(f),S_FLIGHT::QAB(I)+S(F)
        • S(a);SBLOCK::S(H),XP(h)
      • Refutation
        • S(c);XP(D)
  • Actual
    • Q(I);
    • Threat
      • S(H),XP(h)
    • Vars
      • K(d);N_SPINB(f),S_FLIGHT::QAB(I)+S(H)
      • K(d);N_SPINB(f),S_FLIGHT::QAB1(I)
      • R(e);SBLOCK::QAR2(I)
      • S(c);SBLOCK::S(F),XP(i)
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